Leather drier



May 8, 1923- 1,454,694

W. M. SCHWARTZ ET AL LEATHER DRIER Filed Jan. '7', 1922 5 Shee est 1 May 8, 1923" 11,454,694

W. M. SCHWARTZ ET AL LEATHER DRIER Filed Jan, '7 1922 5 Sheets-Sheet May s, 1923 1,454,694

' W. M. SCHWARTZ ET AL IJEATHER DRIER Filed Jan. 7, 1922 5 Sheets-Sheeh May 8, 1923- I 1,454,694 w. M. SCHWARTZ ET AL LEATHER DRIER Filed Jan. 7, 1922 5 Sheets-Sheet 4 Patented ii/iay 3, 1923.

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WALTER. TE. SCHWARTZ AND ELWOOD B. AYRES, OF PHILADELPHIA, PENN SYLVANIA,

ASSIGNORS TO PROCTOR '80 SCHWARTZ, INCORPORATED, 0F PHILADELPHIA, PENN- SYLVANIA, A CORPORATION OF PENNSYLVANIA.

LEATHER Dania.

Application filed January 7, 1922. Serial No. 527,588.

To all whom it may concern:

Be it known that we, WALTER M. SCHWARTZ and Enwoon B. Areas, citizens of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Leather Driers, of which the following is a specification.

One object of our invention is to design an apparatus for drying leather. so that a number of skins can be dried in a minimum of space.

A further object of the invention is to design the apparatus so that the skins to be dried can be arranged comparatively close together in order that both sides of the skins may be subjected to the warm air in circulation.

A still further object of the invention is to provide frames on which the skins are mounted so designed that two skins can be carried by a single frame and the frame can 'be withdrawn from the drying chamber'so thatthe skins can-be examined from time to time during the drying operation and the dried skins removed and'other skins substituted therefor without interfering with the drying operation.

In the accompanying drawings:

Fig. 1 is a side view of our improved leather dryingapparatus;

Fig. 2 is a plan view, partly in section;

Fig. 3 is an end view showing one of the frames withdrawn and another frame partly withdrawn;

Fig. 4 is a perspective view of a-frame in avertical position ready to be admitted to the drier;

' Fig. 5 is a detached perspective view of a frame in a horizontal-position, in which osition a skin is attached to, or detached rom, a frame;

Fig. 6 is an enlarged sectional view show ing a series of frames within the drying chamber; f

' Figs. 7 and 8 are enlarged views showing the method of attaching the skins to the carriers;

Fig. 9 is a view illustrating a modification of ghe arrangement fpr carrying the frames; an -I v I Fig. 10 is a view Offfif modification of the means for supporting the material to be dried on the frame.

Referring to the drawings,- -1 is the we:

ing of a idrying apparatus. I 2 is the drying chamber and 3 is the circulating cham her, which is situated above the drying chamber, and in which the fans t and heating coils 31 are-located. The fans are lo-' cated in openings in the horizontal partition 5.

6 are vertical partitions, which cause the air to circulate in the manner shown by arrows, Fig. 1. 7 is a driving shaft hav; ing belt wheels 8 thereon. Beltspass around these wheels and around wheels 9 on the vertical shafts 10. The method of driving the fans may be modified without de-.

from the essential features of the paratus is a series of lower tracks 11 and- 12, and upper tracks 13 and 14. The lower 1 track 11 and the upper track 13 extend beyond one side of the drying chamber, as

shown in Figs. 2 and 3. The other tracks 12 and 14, which are longitudinally arranged in respect to the tracks 11 and 13, PI'OJGCt on the opposite side'of the drying chamber.

through the horizontal slots in the casing.

Arranged to travel on'the trackll is a v One series of tracks alternate with the other series and the tracks extend series of narrow frames 15. Similarframes 16 are mounted on the rails of track 12 on the opposite side of the apparatus. Each frame has a'lower member 17 and an, upper member 17*. These two members are con nected by vertical end members 18 and'19 which are of such width as toclose the slots;-

in the casing when. the/frames are in the casing orv are withdrawn therefrom.v The two members extend to, and are guided by, the upper track 13. A handle 20 is provided so that the operatorcan readily withv i of each} Yiioo which are hooked into the screen as shown in Fig. 7, and are so designed as to keep the skins free of the screen, as illustrated,

so that airvcan-circulate freely between the twoskins.

By mounting the carrier on pivots, it can I be turned from the vertical to the horizontal position, as shownin Figs. 4 and 5..

Links 26, pivoted to a frame at 27 and to the rearvertical member at-28, retain a carrier' in the horizontal position. It will.be noticed that the carriers are pivoted off center for this purpose,

In Fig. 3, the frames are shown provided with grooved wheels 29, which travel on the rails of the track 11. In some instances, the frames may be suspended from overhead rails, or .trolleys 30, Fig. 9.

"By making the frames on one side altermate with those on-the opposite side, they can be arranged close together and w de drying properly; This is accomplished with'-' out interfering with the proper circulation of air within the drying chamber.

While a carrier in the form of a wire screen is shown and described,.it will be understood thata perforated metal screen may be used, if desired, as shown in Fig. 10.

' We claim:

l. The combination'in a drying apparatus, of a-drying chamber, said chamber having a series of vertical slots in each side Wall of the casing, the slots on one side alternating with those on the opposite side; a series of frames at each side arranged to enter the drying chamber through the slots and means for supporting material to be dried on the said frames. 4

'2, The combination in drying apparatus,

' of a drying chamber; means for circulating air in said chamber, the side walls of the chamber being slotted, the slots on one side alternating with those on the-opposite side; aseries of frames at each side of the apparatlis; rails-on which the frames travel, said rails extending into the drying chamber; and a carrier mounted .on each frame, said carrier supporting the inaterial to be dried.

3. The combination? in a drying apparatus, of a casing enclos ng a drying chamber; a horizontal partition above the drying chamber; fan openings in said partition; circulating fans mounted in said openings; vertical partitions extending into the ,drying chamber from the horizontal partition,

the casing of the drying chamber having a I series of slots at each side, the slots on one side alternating with those on the opposite side; and material-carrying frames at each 1 side arranged to pass into the drying chamber through the slots in the ,side walls thereof.

I lower rails at each side of the apparatus, the

rails extending through the slots in the casing; frames guided by the rails, the frames, when located within the drier, closing the slots; and a carrier pivotally mounted on each frame, said carrier being provided with means by which a skin to be dried can be attached thereto.

5. The combination in a drying apparatus,

of a casing enclosing a drying chamber;

means for circulating air in said chamber; a series of frames arranged to be located in the chamber, each frame having a carrier in the form of a screen; and clamps having hooks engaging the screen, each clamp having a jaw for engaging the skin to be dried, the jaws of the clamps being so proportioned that'the skins will be held clear of the Wire screen when drying.

6. The combination in a drying apparatus, of a casing enclosing a drying chamber; means for heating the air; means for circu lating said heated air; a series ofnarrow frames arranged to be located in the chamber, each frame having a carrier, pivotally mounted thereon, the body of the carrier being in the form of a screen; and hooked clamps on each side of the screen arranged to engage skins to be dried, the skins being so positioned that there will be a clear space between them for the circulation of air.

WALTER M. SCHWARTZ. ELwoon B. AYRES, 

